Question

question 1 of 10
the sides of a central angle are two ____ of the circle.
a. arcs
b. radii
c. diameters
d. chords

Explanation:

By definition, a central - angle of a circle has its vertex at the center of the circle and its sides are the radii of the circle. Arcs are parts of the circle's circumference, diameters are lines passing through the center with endpoints on the circle, and chords are lines with endpoints on the circle but not necessarily passing through the center.

Answer:

B. radii